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My problem is that i have a Form with a 2 colour background; On top i have a bg transparent textfield. When it renders in the simulator it looks fine as the TextField is positioned across the point in the background where the colours meet (as per field 2).

But when i click into field 3, the Textfield takes on a solid background column of just one of my background colours, when i expect it to stay transparent.

The background consists of a LayeredLayout which is darker blue colour, and then i have a light blue graphic in the bottom half:

I have a problem in time while reading from a file because I use in this case scanner .
I have a code fast input but without using a file
so I want to add a file to my code or recommend to me a fast input method using file
public static class FastReader
{
BufferedReader br;
StringTokenizer st;

I showed this code to my university professor and as per her, this is a wrong approach to solve Fibonacci problem as this does not abstract the method. I should have the function to be called as fibo(n) and not fibo(n, 0, 1). This wasn't a satisfactory answer to me, so I thought of asking experts on SOF.

It has its own advantage over traditional methods of solving Fibonacci problems. The technique where we employ two parallel recursions to get nth term of Fibonacci (fibo(n-1) + fibo(n-2)) might be slow to give 100th term of the series whereas my technique will be lot faster even in the worst scenario.

To abstract it, I can use default parameters but it isn't the case with C. Although I can use something like -

So i´m pretty new to programming and currently playing around with linked lists today.
I got everything to work just fine though i always seem to run into the same Problem,the destructor no matter what, it seems to always run into a NULL object when accessing the destructor in any form, throwing an "access rights violation Error"

I´m quite unsure and curious about what could be the source for this Error.
It always occurs no matter the way i try to use delete on it.
The solutions i found so far were:
-simply call delete on the first element and it calls the destructor of the others
-try to check if next in line IS Null but it doesn´t seem to filter it out at all
-try to go through it iteratively but that too did run into ground zero
-try to implement it in a class which did work just as fine as this did, up to the point i had to implement a deletion which ran into the exact same Error

Id be happy to receive some tips on how to fix/avoid this since not deleting it at all cant be a good idea, and i'm not sure at all what exactly went wrong in the code.